Sebastian in Spring
In spring (March, April and May), Sebastian sees average daytime highs around 82°F and overnight lows near 67°F, with 7.5 in of rain over about 27 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 76°F in early March to 87°F by late May. The sky is clear or mostly clear about 36% of the time across spring, and the air most often feels muggy.
Spring is Sebastian's 2nd-best season to visit on our travel score. For the whole year in context, see Sebastian's year-round climate.
- Avg daytime high
- 82°F
- 3rd-warmest season
- Avg overnight low
- 67°F
- Rainfall
- 7.5 in
- 27 wet days
- Avg wind
- 8 mph
- Travel score
- 6.3
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Sebastian in Spring
Over the season highs climb from about 76°F in early March to 87°F by late May.
A typical spring day in Sebastian reaches about 82°F and drops to 67°F overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Sebastian
Once humidity and wind are folded in, spring brings about 8 days that feel above 90°F and 0 that feel at or below 32°F.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Sebastian weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 72° / 57° | 2.0 | 6.9 | 10.4 | 7.2 |
| Feb | 74° / 58° | 1.7 | 7 | 11 | 7.4 |
| Mar | 78° / 62° | 2.2 | 7.6 | 11.8 | 7.3 |
| Apr | 82° / 67° | 2.1 | 7.7 | 12.6 | 6.6 |
| May | 85° / 72° | 3.2 | 11.3 | 13.4 | 5.1 |
| Jun | 88° / 75° | 7.2 | 21.4 | 13.7 | 3.2 |
| Jul | 89° / 77° | 6.7 | 23.2 | 13.6 | 2.8 |
| Aug | 89° / 77° | 7.2 | 24.9 | 13 | 2.7 |
| Sep | 87° / 76° | 6.2 | 21.4 | 12.2 | 3.4 |
| Oct | 83° / 72° | 3.7 | 12.7 | 11.3 | 5.5 |
| Nov | 78° / 65° | 1.6 | 7.5 | 10.6 | 7.2 |
| Dec | 74° / 60° | 1.5 | 5.6 | 10.3 | 7.5 |
Cloud cover in Spring
The sky is clear or mostly clear about 36% of the time across spring.
Chance of precipitation in Spring
Sebastian gets around 7.5 in of rain over 27 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 8 mph across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 24 min in early March to 13 h 36 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.9 kWh/m².
Hazard calendar for Sebastian
None of Sebastian's seasonal hazards peak in spring. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Sebastian sits in the Atlantic hurricane belt; the season peaks August–October.
Sebastian's monsoon runs June–October, when most of the year's rain falls.
Is spring a good time to visit Sebastian?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Sebastian for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Sebastian in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Sebastian sees daytime highs around 82°F and nights near 67°F. Pack light clothes and sun protection. Worth having: rain gear. About 27 days see rain.
Sea temperature near Sebastian in Spring
The nearest coast averages about 74°F across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 83°F and coldest in February near 70°F.
The water stays above 68°F all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 70 | 70 | 71 | 74 | 77 | 80 | 82 | 82 | 83 | 81 | 76 | 73 |
| Comfort | Refreshing | Refreshing | Refreshing | Refreshing | Warm | Warm | Warm | Warm | Tropical | Warm | Warm | Refreshing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 70 | Refreshing |
| Feb | 70 | Refreshing |
| Mar | 71 | Refreshing |
| Apr | 74 | Refreshing |
| May | 77 | Warm |
| Jun | 80 | Warm |
| Jul | 82 | Warm |
| Aug | 82 | Warm |
| Sep | 83 | Tropical |
| Oct | 81 | Warm |
| Nov | 76 | Warm |
| Dec | 73 | Refreshing |
UV index in Sebastian in Spring
Clear-sky midday UV across spring averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sebastian peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 5 | 7 | 9 | 8 | 10 | 11 | 11 | 10 | 9 | 7 | 5 | 4 |
| Level | Moderate | High | Very high | Very high | Very high | Extreme | Extreme | Extreme | Very high | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 5 | Moderate |
| Feb | 7 | High |
| Mar | 9 | Very high |
| Apr | 8 | Very high |
| May | 10 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 9 | Very high |
| Oct | 7 | Very high |
| Nov | 5 | High |
| Dec | 4 | Moderate |
Air quality in Sebastian in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Sebastian is worst in July — around 17 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (December, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 6 | 7 | 9 | 10 | 10 | 14 | 17 | 15 | 10 | 8 | 6 | 6 |
| Level | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 7 | Good |
| Mar | 9 | Good |
| Apr | 10 | Good |
| May | 10 | Good |
| Jun | 14 | Moderate |
| Jul | 17 | Moderate |
| Aug | 15 | Moderate |
| Sep | 10 | Good |
| Oct | 8 | Good |
| Nov | 6 | Good |
| Dec | 6 | Good |
Where is Sebastian?
Sebastian sits at 27.8°N, 80.5°W, 20 ft above sea level, in United States. The nearest listed city is Vero Beach, 13 mi away.
Topography around Sebastian
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Sebastian.
Within 2 miles, the terrain around Sebastian has only modest variations in elevation — a maximum elevation change of 43 ft around an average of 13 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 82 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 246 ft.
The land around Sebastian is covered by water (44%) and trees (28%) within 2 miles, water (45%), trees (28%) and grassland (21%) within 10 miles, and water (37%), grassland (32%) and trees (25%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sebastian (27.8164°, -80.4706°, elevation 20 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.